/**
 * MAMA Embedding HTTP Server
 *
 * HTTP API for embedding generation, integrated with MCP server.
 * Provides fast embedding access for Claude Code hooks.
 *
 * Features:
 * - Model stays loaded in memory (singleton)
 * - HTTP API at localhost:${MAMA_EMBEDDING_PORT || MAMA_HTTP_PORT || 3849}
 * - Health check endpoint
 * - Shared model with MCP server
 *
 * @module embedding-http-server
 */
import type { IncomingMessage, ServerResponse, Server as HTTPServer } from 'http';
export declare const SHUTDOWN_TOKEN: string;
export declare const DEFAULT_PORT: number;
export declare const HOST = "127.0.0.1";
export declare const PORT_FILE: string;
/**
 * Request handler type
 */
type RequestHandler = (req: IncomingMessage, res: ServerResponse) => Promise<boolean>;
/**
 * MessageRouter interface
 */
interface MessageRouter {
    process(message: unknown): Promise<unknown>;
}
/**
 * SessionStore interface
 */
interface SessionStore {
    getHistory?(sessionId: string): unknown[];
    getHistoryByChannel?(source: string, channelId: string): unknown[];
}
/**
 * Server options
 */
export interface ServerOptions {
    messageRouter?: MessageRouter;
    sessionStore?: SessionStore;
    graphHandler?: RequestHandler;
}
/**
 * Clean up port file on exit
 */
export declare function cleanupPortFile(): void;
/**
 * Start the HTTP embedding server
 *
 * @param port - Port to listen on (default: DEFAULT_PORT)
 * @returns HTTP server instance
 */
export declare function startEmbeddingServer(port?: number, options?: ServerOptions): Promise<HTTPServer | null>;
/**
 * Pre-warm the embedding model
 */
export declare function warmModel(): Promise<{
    success: boolean;
    latency?: number;
    error?: string;
}>;
export {};
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